Lot 80286 – 1914 (Aug 1) Swiss 10c “Exposition Nationale” stationery re-used on the Graf Zeppelin 4th South America flight

1914 (Aug 1) Swiss 10c “Exposition Nationale” stationery envelope cancelled by the expo cds, then used on the Graf Zeppelin 4th South America flight 31.7.34 with Germany airmail 100pf and 50pf tied by “LUFTSCHIFF / GRAF ZEPPELIN” ds, oval “AN BORD DES LUFTSCHIFFS” hs along with Friedrichshafen Zeppelin cds and German airmail cachet, fine and unusual.